Loose-leaf binder



May 23, 1933. c. H. FRAN Z, JR

LOOSE LEAF BINDER Filed Dec. 9, 1929 I I I 6%cwkf TF f oglt'arrzfya Patented May 23, 1933 CHARLES H. r'nnivz, R, on mrnwnuxnn; wrseonsrm 1 v i LOOSE-LEAF BINDER.

Application filed December 9, 1929. serial no. 412,563;

This invention relates to improvements in loose-leaf binders. A a

One of the objects of this invention is the provision of a comparatively cheap form of loose-leaf binder provided with novel fastening means which cooperates directly with the vision of a loose-leaf binder of the above vbetween the cover, or 'alarge number, as the type wherein the locking pins are adjustable so that the two cover members may be positioned at different distances from each other to accommodate a small number of sheets case may require.

A further object of the invention is the provision of a loose-leaf binder wherein one 7 of the cover portions can be easily moved to a flat position when opened and carries novel securing means adapted to cooperate with adjustable locking pins carried by the other cover section whereby the binder may be quickly opened to permit the insertion of additional sheets between the covers, or may be quickly movedand closed to a locked position. i

With the above and other objects in view, the invention consists in the novel features of construction, the combination and arrangement of parts hereinafter more fully set forth, pointed out in the claim and shown in the accompanying drawing wherein:

Figure 1 is a transverse sectional view taken through my improved loose-leaf binder;

Figure 2 is a section on the line 22 of Figure 1; and

Figure 3 is a detail section on the line i 33 of Figure 1.

Referring more particularly to the drawing, it will be noted that my improved binder comprises the cover members 1 and 2, integrally joined by a flexible portion 3. v The forward edges of the covers 1 and 2 are folded inwardly upon themselves, as shown at 1,

and is securely maintained in this'positi'on" i UNITED STATES A ENT foFFic eff by means ofa'thin lining layer 5, secured tothe inner facesof the cover members '1 and 2 by any suitabletype of adhesive with'the forwa'rdedges of this lining extending over the inwardly folded edge of each cover for retaining the folded edges of the "cover in position, 7 a

The integral connecting part3 is provided with a lining portion 6 one edge of ;wh-ich is adapted to be folded around a metal rein-j forcing-strip 7 andthen' folded under the inner edge ofthe lining layer 5, as shown in Figure 1, with the edgeof the'lining 6 seourely' fastened to the; reinforcing strip" 7 by a suitable adhesive, and also secured to the layer 5 as well as the" cover 'porti'onfi V byan adhesive; The reinforcing strip 7 carries the upstanding guide pins'S which are adapted to cooperatewith the'downwardly projecting guide pins 9 carried by the trans fer'stripl'l.

The other edge of the lining piece 6 isfolded around the reinforcing strip 10and thence extends :up'wardly' with itsbxtrm'e portion positioned between the" inner edge of the layer 5 and-cover 1, assho'wnat 12', and

is'secured to these two parts by any suitable type ofadhesive. a 1

In connecting the upper edge of the lining part 6, the folded portion iss'uific'ientlylong to provide a flexible hinged pare 13which is disposed between the reinforcing strip 10 and the flekible part 3. Arrangedabove the reinforcingstrip 10 and positioned ontop of the portionbf thelining which extends strip 11, and the metal-strips 10 and ll'iwith thefassociated portion ofthe'liningd are a j to seeured together by meansofthe eyelets 14;

Attached to each end ofthe strip'T-are the internallythreaded 'tubular parts 15in that the ends of thereinfor'cing strip '11 are provided with transverse notches 18 adapted to receive the 'restrictedportion "of the across thegupperfacebf-thestrip 10 is the v pins so that a portion of each end of the strip 11 can be positioned beneath the head 19 on each locking pin. V

In order to lock the ends of the strip 11 to the adjustable pins 16, a slidable plate 20 is mounted at each end of strip 11 and each plate is formed with a slot 21 and positioned within the slots 21 are the barrel portions of the eyelets 22 and 22' carried by the reinforcing strips lO and 11, said eyelets limitinwthe movement of the lockin late 20;

D D p in either direction. The outer end of the locking plate is bifurcated to form two spaced fingers 23 which are adapted to fit upon op-' posite sides of the head 19 of pin 16 for maintaininjgthe endsof strip 11 in engagement with therestricted portions of the pins.

.The strip 11 is provided adjacent each end with} depressions from the lower side which form outstanding teats2at which, as will be noted in Figure 3, form suitable stopsior the lockingplatesQO when the same are in operative position, as shown in Figure 3, butwill permit the'plates to be moved to an unlocked position by engaging a finger of the hand with the transverse slot 25 formed inthe inner end of each locking plate. I

"It will-be apparent from the foregoing that when the two coverportions l and 2 are 'iu'closed positiointhe ends of the strip 11 will be engaged with the restricted portion of the locking pins 16 and will be maintained in this'position moving the look ing plates 20 outwardly so that the fingers 28 will be positioned upon opposite sides of the upper slot of the locking plate."

However, when it is desired to release cfm'er 1, the plates 20 can be moved inwardly so that the ends of strip 11 may be dis connected from the locking-pins16, thus entirely releasing cover 1 from any other adjacent parts ofthe binder so that the cover 1 can swing to an open position and lie flat on a surface in the same plane ascov-er 2,

and as the reinforcing strips lOand 11 and the parts carried thereby are supported by the hinged connection 13 ofthe lining strip 6, the coveri l can be readilyinove-d to a closed position and strip. 11 readily posi? tioned for having its ends engaged with the locking pins 16, after which the locking "invention into practice without departing from the spirit of the same or the scope of the appended claim.

I claim:

A loose leaf binder comprising opposed cover members, a flexible back portion joining said cover members, attaching members connected with said cover members, internally threaded tubes carried by the ends of one of said attaching members, a lock strip sccured to the other attaching member and projecting beyond the ends thereof, locking pins adjustably engaging said tubes having enlarged heads formed thereon provided with annular grooves, atransverse strip re-v movably fitted over said locking pins, leaf guide pins carried by the attaching member having the tubes and said transversei'strip, said guide pins being arranged in staggered notches therein at its terminalsfor eng'ag-. mg n the grooves 011 the heads of the l'ocke mg pins, andlocking plates slidably carried by said lock strip having notches arranged at rigrjlltang'les to the first-mentioned notches removably engaging said locking pins and cooperating with said first notches holding the locking pins against sliding movement relative to the lock strip." i A v In testimony that I claim the foregoingl have hereunto set my hand at Milwaukedin the county of Milwaukee, and State of VVisQ cousin. p CHARLES FRANZ; Jan:

relation and between the locking pinsand tubes, the lock strip" having transverse 

